LOGLEVEL_WARNING
VDO_LOG_WARNING = LOGLEVEL_WARNING,
case LOGLEVEL_WARNING:
btrfs_printk_in_rcu(fs_info, LOGLEVEL_WARNING, fmt, ##args)
btrfs_printk_rl_in_rcu(fs_info, LOGLEVEL_WARNING, fmt, ##args)
.level = LOGLEVEL_WARNING,